China’s households hide as much as 9.3 trillion yuan ($1.4 trillion, 2010) of income that is not reported in official figures, with 80 percent accrued by the wealthiest people according to a Credit Suisse Equities Research Study

* the money is mostly illegal or quasi-illegal equates to about 30 per cent of China's gross domestic product
* The average urban disposable household income in China is 32,154 yuan (2010), or 90 percent more than official figures